Microtech TPS caliration problem?

[GoProtege]

I think I'm having a problem with the TPS_cal setting on my Microtech. At idle I set the TPS_cal to 16%. That's where the current value reads 0 and I get the *
When I step on the gas and the rpms increase, the TPS_cal indicator starts to flash on the message area on the laptop screen. In order to get the TPS_cal text to go away I have to increase the TPS_cal value.
Is it supposed to do this? This seems to cause a problem trying to tune the car and just wondering what's up.

Thanks!

 

[GoProtege]

Some extra detail: I slowly pressed the gas pedal down until the TPS value on the Microtech reads 99% When it reads 99% I'm only pressing the gas pedal about halfway down. My OBDII scan tool shows that the ABSLT TPS is around 53%

 

[AusOrion]

Seems strange that you have TPS readings on both the Microtech and the ScanGauge :s

I thought that the TPS sensor was one that you had to take away from the stock ECU and give to the Microtech (i.e. not splice wires)

 

[TurfBurn]

Some extra detail: I slowly pressed the gas pedal down until the TPS value on the Microtech reads 99% When it reads 99% I'm only pressing the gas pedal about halfway down. My OBDII scan tool shows that the ABSLT TPS is around 53%

This is normal on the microtech going to 99% way too early on the depression of the pedal.

 

[TurfBurn]

Seems strange that you have TPS readings on both the Microtech and the ScanGauge :s

I thought that the TPS sensor was one that you had to take away from the stock ECU and give to the Microtech (i.e. not splice wires)

The Microtech allows for "tap in" connections on the TPS, that was part of what we did custom/different than everyone else with the NSN models. They were electrically different than models you could buy elsewhere and it was to solve issues like that more cleanly.

 

[TurfBurn]

I think I'm having a problem with the TPS_cal setting on my Microtech. At idle I set the TPS_cal to 16%. That's where the current value reads 0 and I get the *
When I step on the gas and the rpms increase, the TPS_cal indicator starts to flash on the message area on the laptop screen. In order to get the TPS_cal text to go away I have to increase the TPS_cal value.
Is it supposed to do this? This seems to cause a problem trying to tune the car and just wondering what's up.

Thanks!

The TPS really doesn't even have to be accurate. It is only used/comes in to play for idle settings. It's not abnormal to see the TPS_Cal flash in the status, but it shouldn't happen all the time. Basically you should get an orange light on the microtech when car is off and calibrated correctly for TPS. Touching the pedal should make that go away. Once you start the car you should see the status of "idle" when not touching the gas and the orange light will flash indicating the crank signal. Anything else at that time relative to the TPS cal is somewhat irrelevant. As soon as you touch the gas you should lose the "idle" state.

 

[LordWorm]

Generally, i set my TPS calibration up on my tunes like this:

1) set the TPS cal to a value that allows the tps on the microtech to read 0 (zero)
2) with the engine not running, depress the throttle slowly all the way to the floor
3) if the value reaches 99% (full throttle) before i get the pedal all the way to the floor, alter the TPS cal to provide more range on the sensor

its important first and foremost that when you are totally off throttle you are at 0% - beyond that its not totally important. On both mine, and AusOrion's it reads zero at closed throttle and 99% just as the throttle is about to touch the floor....

If you are load tuning, I believe WOT is indicated by 0"hg not by 99% throttle... it would become more of an issue if you were in TPS tuning mode though...

 

[GoProtege]

Thanks all!
I'm glad to hear that this is normal and that my MT isn't fried or something.